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    <meta charset="UTF-8" />
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    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>多类名的使用方式</title>
    <style>
      .red {
        color: red;
      }
      .font35 {
        font-size: 35px;
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  </head>
  <body>
    <div class="red font35">天锁斩月</div>
  </body>
</html>
